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What is AoE? Wikipedia has a very good article on AoE, the summary of which is quoted here:
ATA over Ethernet (AoE) is a network protocol developed by the Brantley Coile Company[1]?, designed for accessing ATA storage devices over Ethernet networks. It gives the possibility to build SANs? with low-cost, standard technologies.
AoE does not rely on network layers above Ethernet, such as IP, UDP, TCP, etc. This means that AoE is not routable over LANs? and is intended for SANs? only. An alternative to iSCSI, the AoE specification is 8 pages compared with iSCSI's 257 pages.
The AoE Linux Kernel initiator is located in {linux-source}/driver/block/aoe/. The NetBSD? Initiator project is in this year submission for Google Summer of Code (2008 ed.).
Make sure to use the latest AoE driver (kernel module) and target (qaoed/vblade).
The aoe.ko that comes with the kernel is ancient and broken.